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Physicians in China treated patients with facial epidermal pigmented dermatoses (ephelides, café au lait, lentigines, and seborrheic keratosis) using a Q-switched Ruby laser. The study involved 164 cases, 52 male and 112 female, from an outpatient department of dermatology. Using the Q-switched Ruby laser at 694nm with the aiming beam at 635nm, physicians adjusted spot size and fluence according to thickness, skin tone, lesion size, degree of pigmentation, and area to be treated. Physicians also assessed which lesions responded most successfully and least successfully to the Q-switched Ruby laser therapy. Read the physicians' document for further discussion on the study's results.
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